21139336

素因数分解:

$2^3\times {\mathrm{337}}^1\times {\mathrm{7841}}^1$

素因数の和:8184

約数の個数: 16

約数和(自身を含む): 39758940

約数和(自身を除く): 18619604

約数列:

[1, 2, 4, 8, 337, 674, 1348, 2696, 7841, 15682, 31364, 62728, 2642417, 5284834, 10569668, 21139336]

約数ペア:

[(1, 21139336), (2, 10569668), (4, 5284834), (8, 2642417), (337, 62728), (674, 31364), (1348, 15682), (2696, 7841)]